speaker wiring questions

[cunnart]

I am by passing my factory amp when I install a new head unit but the issue is that the jeep has 6 channels in it and the head unit only out puts 4. So my question is how do I wire this?

The front door speakers are original supposedly 2 ohms, the rear door speakers are new 4 ohms, and the rear sound bar speakers are original 2 ohms. I figure the fronts will get run off the front channel from my clarion cz500 but what do I do about the rears and the sound bar? if I run the sound bar parallel with the rear speakers if I did my math right it is a sub 1 ohm load, which I think would be bad for the HU. I assume if I splice both the rear door speakers and the sound bar together that is the same as running them in parallel. The way I'm ditching the factory amp is I am just splicing the in and out connectors together. The factory set up also only has 4 channels going in but as mentioned before the amp has 6 channels out. How I can I wire this with out blowing stuff up?

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[maylar 10+ year member]

That's why there's an amp there. It turns 4 channels into 6. You have to either lose two speakers or use an amp. And head units don't like 2 ohm loads so you'd better replace them with 4 ohms before hooking them direct.

 

[keep_hope_alive Premium Member]

Agreed, head units have a 4 ohm minimum impedance rating. Granted, with speaker wire and other resistances the 2 ohm speaker will rarely measure 2 ohm, but the HU won't like it regardless.

You cannot power 6 speakers off an HU without some trickery. In your case, use the factory amp to power the factory speakers by giving it a signal from the HU, then power the new speakers from the HU.

 

[All_Logix 10+ year member]

If I am not mistaken there are tweets and midbass up front giving you your four front channels... You could either by a crossover or make one using some caps and inductors....recomend buying one though if this is the route you want to take